Four Seasons 55903 A/C Refrigerant Discharge / Suction Hose Assembly

Overview of Four Seasons Hose Assembly 55903

The Four Seasons Hose Assembly 55903 is designed for reliable performance in automotive HVAC systems. This A/C refrigerant discharge and suction hose assembly is compatible with select Buick, Cadillac, and Chevrolet models, including Caprice, Commercial Chassis, Fleetwood, Impala, and Roadmaster.

• Constructed from durable aluminum and rubber materials
• Compatible with R134a refrigerant type
• Includes green o-ring seals and sealing washers for secure connections
• Features female o-ring fittings on both discharge and suction ends
• Equipped with a service port and switch service port (switch not included)
• OE replacement part ensuring proper fit and function
• Manifold included; no bracket or muffler included

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line from Four Seasons focuses on delivering precise HVAC hose and pipe solutions for automotive air conditioning systems. This line emphasizes quality materials and exact fitment to maintain system integrity and refrigerant containment. The 55903 hose assembly exemplifies this approach by combining aluminum and rubber construction with essential sealing components, ensuring compatibility with factory specifications for Buick, Cadillac, and Chevrolet vehicles.

Detailed Product Description

The Four Seasons 55903 hose assembly serves as both a discharge and suction line within the vehicle's air conditioning system. Its aluminum and rubber construction provides durability and flexibility, while the included green o-rings and sealing washers ensure leak-free connections. The female o-ring fittings on both ends facilitate secure attachment to the manifold and other HVAC components. This assembly is designed for use with R134a refrigerant and includes a service port and switch service port to support maintenance and diagnostics, although the switch itself is not included. The absence of a bracket and muffler means installation may require existing mounting hardware.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge and suction hoses
• Resolving refrigerant leaks caused by degraded seals or hose material
• Restoring proper refrigerant flow in Buick Caprice, Cadillac Fleetwood, and Chevrolet Impala A/C systems
• Addressing issues related to faulty or missing service ports for system servicing
• Maintaining OEM specifications for air conditioning performance and reliability

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Use the included green o-rings and sealing washers to prevent leaks
• Verify that the service port and switch service port align with existing system components
• Retain original brackets or mounting hardware as this assembly does not include brackets
• Inspect all connections for tightness and proper sealing after installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55903 is an OE replacement part designed to meet original equipment standards for Buick, Cadillac, and Chevrolet vehicles. It includes all necessary sealing components to ensure a secure fit and leak-free operation. While specific warranty details are not provided, Four Seasons products typically adhere to industry quality standards to support reliable HVAC system performance.